Cash register



July' zl, 1931. w. ROBERTSON 1,815,329

CASH REGISTER Filed July 9, 1925 FIG. 1

3 Sheets-Sheet l gwuenfoz William H. Robertson %W!/ M lllllllllIlllllllllllllllll SGML ENTER Hi; 61cm ne July 21, 1931..v

. W. H. ROBERTSON CASH REGISTER Filed July 9, 1925 3 Sheets-Sheet 2FIG.14

. 1 mnrxme 8Q" PLATECATd-(OS TOTALIZER' 6 5 WfiEELLOCKIHG CAM-I29William H. Rom

gnuenioz- K 3 Sheets-Sheet 3 3mm William H. Robertson W. H. ROBERTSONCASH REGISTER Filed July 9, 1925 July 21, 1931,

Patented July 21, 1931 UNIT-ED STATES PATENT :FPIQE WILLIAM H.ROBERTSON, OF DAYTON, GHIO, ASSIGNOR, BY I IESNE ASSIGNIYIENTS, TO THENATIONAL CASH REGISTER COMPANY, OF DAYTON, OHIO, A CORPORATION OFMARYLAND CASH REGISTER Application filed July 9,

This invention relates to accounting machines and the like, the primaryobject being to devise a mechanism which is adapted to be placed inthehouse in a convenient position to be used by all members of thehousehold in recording the various expenditures entering into themaintenance of the house and its members.

Another object is to provide a machine that will accumulate items anddisplay a total of the items.

Another object is to provide a classified record strip upon whichentries may be made of the various household expenditures.

Another object is to provide a convenient receptacle in which to placereceipts received on household expenditures.

With these and incidental objects in view, the invention includescertain novel features of construction and combinations of parts,

the essential elements of which are set forth in appended claims and apreferred form or embodiment of which is hereinafter described withreference to the drawings which accompany and form part of thisspecification.

Of said drawings:

Fig. 1 is a plan view of the register with the greater part of thecabinet broken away and a portion of the totalizer mechanism shown insection for clearness.

Fig. 2 is a right hand elevation of the register showing the containerfor receipts.

Fig. 3 is a sectional view taken on the line 33 of Fig. 1, looking inthe direction of the arrows, and showing a totalizer wheel and the indexlever mechanism.

Fig. 4 is a sectional view taken on the line l4 of Fig. 1, looking inthe direction of the arrows and showing the full stroke mechanism forthe driving shaft.

Fig. 5 is a detail view showing the totalizer wheels locking plate andthe transfer pawls.

Fig. 6 is a top plan view of the index plate and levers.

Fig. 7 is a front elevation of the totalizer mechanism with partsomitted for clearness.

Fig. 8 is an enlarged sectional view taken 1925. Serial No. 42,512.

on the line 88 of Fig. 7, looking in the direction of the arro Fig. 9 isa detail view showing a portion of a totalizer wheel and index leverplate.

Fig. 10 is a detz 'l perspective view showing a portion of an indexlever and plate.

Fig. 11 is an enlarged detail view of a portion of the totalizertransfer pawl mechanism.

Fig. 12 shows two totalizer wheels and a transfer device before atransfer takes place.

Fig. 13 shows the same two wheels and the transfer device after atransfer has been made.

Fig. 14 is a time chart for the two cams on the main shaft.

GenemZ description Described in general terms the machine is a smallportable register adapted to be placed on a stand or hung on the wall ina house, where it may be used by the various members of the family orservants in recording household expenditures.

The machine includes a classified record strip of paper upon whichentries are made of the various items for which money is paid out. heitems recorded on the record strip may be set up by index levers foraccumulating the amounts in a totalizer when an operating crank is givencycle of movement.

A small receptacle in the form of a drawer provides a convenient filingplace for receipts received from the various expenditures Specificallydescribed, the machine includes a frame 30 (Figs. 1 and 2) provided withan ear 31 formed at right angles there to. This ear supports a rod 32upon which is freely mounted a supply roll of record paper 33. Thispaper is wound upon a wooden core and rotates against the frictiontension of a disk 35 and a spring 36. This supply roll is adapted to berotated by a knurled knob 37 which has two pins 38 penetrating thewooden core The sup ply roll and knurled knob are held in position onthe rod 32 by a screw 39.

be made in their proper columns ace The paper is unwound from the supplyroll and wound onto a r'ceiving roller l3 freely mounted upon a stud:upported at one end by an ear formed on the frame 80. This receivingroller has at i right hand end disk 125 to guide the paper as a it iswot (i upon "olier. fir spring it intermediate the disk and pro-- videsa friction tension on t l rotating movement. The ever is secured to'eceiving eing The paper is knob of sup Y always held taut by andpreviously descri As the record strip pa se roll to the receivingrollerwriting table 50 (Fig. 2) s1 frame of the machine. Res u to Fig. 1 itmay be seen that the record strip is supplied i ith ruled lines so thatthe entries r ay to a classified index plate 51 which is cured to acasing 52 enclosing the mechanism of the machine.

Totalizer The various items entered upon the record strip may also beaccumulated in a totalizer which furnishes a reading total of theexpenditures. This totalizer is placed at the top of he machine andconsi a plurality of wheels. Each of the whe includes a circular band 58upon which are or 'aved three groups of digits. band is nr. .rcne-i to aformed disk 59 g i} secured t hub 60 by a collar 61. Secured to the r 59by rivets 69 is a disk 63 PLOVltlQCl w a plurality of elongated open s(3% (ll. 8)

equal in number to the di on the b; i 58. Loosely fitted in each ofthese elem; openings is a slidable projec -table stop 0 (Figs. 1, 8 andThe right hand end 0:; the stop is guided by open' formed in the disc 59of the totaiizcr (Figs. 8 and 9). These lagtd to be moved laterally bymeans v- "iich hereinafter be described. Each s vided with shoulders toarrest it in and operated positions.

A spring clamp 67 adapted to retain the SLOP 6 stops are at homeposition or operated 10s spring clamp is positioned bet-wee supported a=59 and the disk The total zer upon a shaft 68 end by a bracket 69fastened to the frame of the machine, and at the lefthand end by abracket 70 which is also secured to the frame of the machine. The shaft68 is provided with two grooves 71 (Figs. 1, 3 and 8) formed on oppositesides of the shaft and running in the direction of the length of theshaft. Slidingly and non-rotatably mounted on the shaft 68 are disks 72placed between the hubs 60 of the totalizer wheels. These (.llShS havetwo lugs 7 3 (Figs. 3 and 8 which are loosely fitted in the grooves 7iin the shaft 68. Near the left-hand end of the shaft 68 (Fig. l), andcontacting the lastdisk 72, is a sleeve 77 loosely fitted on the shaftand constantly forced toward the disk 72 by a compression spring 78entwined about the shaft 68. The function of this spring is to furnish asufficient friction be tween the disks 72 and the hubs 60 of the ilizerwheels to cause these wheels to r0- LU tate with the shaft until theymeet with an obstruction which will hereinafter be described. The amountof compression of the spring 78 is controlled by an adjusting nut 79applied to the left hand end of the shaft 68. Tl is nut is retained inadjusted position by a pin 80.

The shaft 68 is rotated by manually operated crank 81 (Figs. 1, 2 and 6)pinned to the right hand end of the shaft and projecting to the outsideof the casing of the machine. This operating crank is turned in thedirection of the arrow, shown in Fig. 2, and is prevented fromretrograde movement a ratchet wheel 82 (Fig. 4) pinned to a drum cam 83secured to the shaft 68. Cooperat-ing with the ratchet wheel 82 is aspring-actuated pawl 84., pivoted on a stud 85, supported in a bracket86, projecting upwardly from the frame of the machine.

The amount of rotation of the to'talizer wheels is predetermined by aplurality of index levers adjacent to each of the wheels. Each indexlever mounted on a hub 91 loosely titted on the hub (50 of a totalizerwheel (Fig. 1). A. spacing coliar 92 is provided to maintain the indexlevers in their lateral positions with a sufficient working clearancebetween the hubs of the levers and the totalizer wheels to permit thelevers to be moved imlependentlv of the wheels. Integral with the indexlever 90 is a notched plate 9 3 (Fig. 8). which coo erates with a springactuated pawl 94- to retain the index lever in its various set positions. This pawl is freely mounted upon a stud 95, supported in abracket 96. secured to the frame of the machine. The index leversprotrude through a slotted indexing plate 97 (Figs. 6., 7 and 8). whichhas a plurality of sets of digits engraved parallel with the slots. Fastened to each lever guiding pointer 98 to assist the operator inproperly selecting the desired digits.

The indexing plate 97 is also provided with round openings 99 throughwhich a read ing of the totalizer wheels may be taken. The indexingplate is supported at both ends by brackets 100 and 101 secured to theframe of the machine and held in place by screws 102 engaging elongatedopenings in the plate. These elongated openings permit the indexingplate to be moved laterally by a cam groove 103 (Figs. 1 and 7)cooperating with a roller 10st mounted on a stud fastened in theindexing plate. The lateral movement of theindexing plate occurs nearthe beginning of the operation of the crank 81, the plate being movedtoward the right and then immediately returned to home position. Thetiming for this cam 103 is shown in Fig. 14.

Tappets 108, (Fig. 10) are provided with openings through which thelevers 90 extend, and are adapted to be moved difl'eren tially with thelevers in the slots formed in the indexing plate 97 and also are adaptedto be moved laterally by the plate 97. Each tappet 108 is guided in theslot of the indexing plate 97 by a flange 109 and a stud 110. Theopening in the tappet 108 through which the lever 90 extends is ofsufficient width to permit the tappet 108 to move laterally with theindexing plate 97 without any lateral movement of the lever 90. Thetappet 108 (Figs. 9 and has a downwardly extending flange 111 which isplaced in alinement with one of the various projectable stops by theindex lever, and as the operating crank 81 is turned, and the indexingplate 97 moves laterally to the right, the flange 111 will engage thestop 65 and move the latter toward the right until its right hand endprojects out a sufficient distance to act as a stop for the totalizerwheel as it comes into contact with a shoulder 112 (Figs. 5 and 8) of apivoted lever 113. As the stop 65 engages the J shoulder on the lever113, that particular wheel will cease to move with the shaft 68 in itscycle of operation. For example, if an index lever is moved intoalinement with the digit three, the stop 65 in alinement :"i with theflange 111 is projected out of normal position and the totalizer wheelrotates with the shaft 68, by the friction disk previously described,until the stop contacts the shoulder 112, (Fig. 12) which permits threedivisions of movement of the wheel. as previously stated. Each totalizerwheel is provided with three sets of digits which affords ample time ina single cycle of rotation of the shaft 68 to operate the variousdevices prior to and after the movement of the totalizer wheels whenthey move their greatest extent, which is ten divisions of movement.

As a totalizer wheel moves from nine to zero, it is necessary to carryone to the wheel of next higher order. For this purpose three brackets114 (Fig. 8) are secured to each digit wheel. Any one of these bracketsmay engage the lower end 115 of the lever 113 (Figs. 5, 8, 12 and 13)and move this lever in a clockwise direction from the position shown inFig. 12 to the position shown in Fig. 13, thus moving the shoulder 112out of the path of the projected stop 65 carried by the totalizer wheel.With this lever out of the path of the stop 65, the totalizer wheel ispermitted to move an additional step (from position in Fig. 12 toposition in Fig. 13) during the rotation of the shaft 68, when it isstopped by the projected stop 65 engaging a shoulder 116 (Fig. 5) formedon an arm 117 projecting from a laterally sliding bar 118 guided by twostuds 119 fastened in a bracket 120 secured to the frame of the machine.

The tripped transfer levers 113 are restored to their normal positionsat the beginning of the operation of the machine by pins (Fig. 5)mounted in downwardly extending arms 126 of the indexing plate 97. Thesepins engage the ends 115 of the levers 113 (Figs. 5 and 8) as theindexing plate 97 (Fig. 6) is moved toward the right by the cam groove103 (Fig. 1) previously described.

The transfer levers 113 are retained in either their home positions ortheir operated positions by tension springs 121 (Figs. 8 and 11). Thesesprings are each in the form of a split ring and each encircles theconeshaped head of a pin 122 secured by its opposite end to the transferlever 113. Each spring 121 is slightly expanded in placing it inposition so that its closing-in action against the cone will cause adownward pressure on the pin 122, thereby creating friction between theunder side of the transfer lever 113 and the top of a sleeve 123 securedin the bracket 120.

The totalizer wheels are normally locked against rotation by projections127 (Figs. 1 and 5) formed on the arms 117 entered into slots 128 (Figs.1 and 3) formed in the totalizer wheels. The bar 118 (Figs. 1 and 5),with which the arms 117 are integral, is moved laterally by a cam groove129 (Fig. 1) cooperating with a roller 130 mounted on a stud fastened insaid bar. The cam groove 129 is formed so as to move the projections 127from the position shown in Fig. 7 to the position shown in Fig. 12 tounlock the to talizer wheels at the beginning of the opera tion of thecrank 81 and then move these projections 127 from the position in Fig.12 to the position in Fig. 7 to again lock said wheels near the end ofthe operation. The timing for this cam 129 is shown in 14c.

As the bar 118 returns to home position to lock the totalizer wheels,the arms 117 will simultaneously engage the projected stops (Figs. 8 and9) and return them to home positions.

The machine is provided with a sliding drawer 13G (Figs. 1 and 2) whichfurnishes a convenient place in which to file receipts received from thevarious monetary transactions. Access to this drawer is bad by sliding'the drawer toward the right by the aid of a fin 'er grip 137.

Operation In using the machine for the purpose for which it is intended,when money is paid for household items coming under the variousclassifications, as shown by the record strip index plate in Fig. 1, theproper entries are made upon the record strip. As the exposed portion ofthe record strip is filled with entries the knob 49 of the upper orreceiving roller is turned to move additional unused record materialinto writing position. To review entries which have been moved ahead ofthe writing position or out of view, the lo er knob 37 is turned in areverse direction.

After entering the items upon the record strip, corresponding items oramounts are set up by the index levers 90, (Fig. 6) after which theoperating crank 81 is given one cycle of movement to enter the item oramount in the totalizer. The total accumulated can be read at any timethrough the openings 99 provided for that purpose. The totalizer wheelsmay be reset to zero at any time by moving the index levers 90 to thedigits on the indexing plate 97 corresponding to the complement of thedigits on the totalizer wheels showing through the openings 99 and thenoperating the crank in the usual way. he customary receipt received whenpaying out money may be filed in the drawer or receipt compartmentdesignated Receipts in Fig. 2.

While the form of mechanism herein shown and described is admirablyadapted to fulfill tne objects primarily stated, it is to be understoodthat it is not intended to confine the invenuon to the one form orembodiment herein disclosed, for it is susceptible of embodiment invarious forms all coming' within the scope of the claims which follow.

t l ss described, M V i elenent, a movably mounted cover plate for thetotalizer element, stops movably mounted in said element, and meansoperated by said cover plate for projecting any selected stop intofunctioning position.

lin a. machine of the class described, the ctnnbination of a caing, atotalizer element, a movabiy mounted cover plate, movably mounted stopstor said element, means for selecting the stops, and means operatel bysaid plate for moving the selected stop into functioning position.

3. In a machine of the class described, the combination of a totalizerwheel, a shaft supporting said wheel, equidista ,tly paced slidesmounted on said Wl'ltEOl, a 'erentially movable value determining devicepivoted on said shaft, and means operable under control of said valuedetermining device for moving ad 'acently located slide into functioningposition.

-il. in. a machine of the class described, the combination oi atotalizer wheel, a shaft supporting said wheel, equioistantly spacedstops movably mounted on said wheel, a differentially movable valuedetermining device mounted on said shaft, a stop operating membermovable di i'crentially with said value determining device ameans toshift said stop operating member to move a stop into functioningiosition.

l the class cescrib o. In a machine c" ed, the combination o totmizerwheel, stops movahlv mounted said wheel, indexi means,

and means "for projecting a stop occupying a position corresponding tothe amount indexed, into tunctionin position.

In a machine of the cars described. the combin-tion of an indexinglever, a member carried by said lever nuiunted for relative movementthereto laterally, a slotted plate guiding said member, and means formoving said plate to shift said member laterally relatively to saidlever.

7. In a machine of the class described, the combination of a totalizerwheel, stops movably mounted in said whed, a differentially movableindexing men'iber, a ilate provided with slot in which said indexing;member moves, stop actuating; means guided in said slot and movableditierentiall with but laterally relatively to said indexing member, andmeans for operating said plate for moving a selected one oi said stopsinto functioning position.

8. A totalizer wheel omprising two disks and a rim defining an annularchamber, said disks being provided with alined slots opening laterallyfrom said ch:.unber, an-l members within sait chamber slidably mountedin said slots.

9. A totalizer wheel. comprisiup,- we slotted disks together clearing aperipheral channel, the slots being shorter than the depth of saidchannel, a rim closing; said channel to define an annular chamber,slides in said chaml er projecting into said slots, and shoulders onsaid slides for retaining said slides within said channel and forlimiting their movements into home and operated positions.

10. In a machine of the class described, the combination of a totalizerwheel, movably mounted stops carried thereby, means for selecting a stopfor controlling the ditferential movement of said wheel, a slidable bar,means carried by said bar to arrest the selected stop and to hold saidwheel in adjusted position, and to return said selected stop to normalposition, and means for sliding said bar.

11. In a machine of the class described, the combination of a totalizerwheel, mo ably mounted stops carried thereby, means for selecting a stopfor controlling the differential movement of said wheel, a slidable bar,a single member carried by said bar adjacent the wheel to arrest theselected stop and to hold the wheel in adjusted position, and to returnthe selected stop to normal position, and means for sliding said bar.

12. In a machine of the class described, the combination of a rotatableshaft, means for operating said shaft, a totalizer wheel freely mountedon said shaft, a hub on said wheel, an index lever freely mounted on thehub of the wheel, a friction connection between the totalizer Wheel andthe shaft, and means controlled by said index lever for stopping saidtotalizer wheel in a position determined by the adjustment of the indexlever.

13. In a machine of the class described, the combination of a rotatableshaft, means for operating said shaft, a totalizer wheel freely mountedon said shaft, and index lever adjacent said totalizer wheel and mountedin axial alinement therewith, friction means to drive the totalizerwheel from the shaft, means controlled by the index lever for stoppingsaid totalizer wheel, and means operated by said operating means forlocking said totalizer Wheel in the various positions of adjustment.

14. In a machine of the class described, the combination of a rotatableshaft, means for operating said shaft, a totalizer Wheel rotatablymounted on said shaft, means for differentially controlling the extentof rotation of said totalizer wheel, a laterally movable means normallyengaging said totalizer wheel to prevent rotation of the same, and a camsecured to said shaft adapted to disengage said laterally movable meansfrom said totalizer wheels at the beginning of the operation of saidshaft and to engage the laterally movable means with the wheels near theend of the operation.

15. In a machine of the class described, the combination of a rotatableshaft, means for operating said shaft, a totalizer wheel rotatablymounted on said shaft, an index lever adapted to be moveddifferentially, a tappet moving with said lever and adapted for lateralmovement relatively to said lever, slidable members mounted in saidwheel and adapted to be adjusted from normal position to operatedposition by said tappet, and means adapted to engage said adjustedslidable members to stop rotation of said wheel.

16. In a machine of the class described, the combination of a rotatableshaft, means for operating said shaft, a totalizer wheel rotatablymounted on said shaft, a plurality of groups of digits arranged on theperiphcry of said totalizer wheel, a plurality of movable members equalin number to the digits and supported in said totalizer wheel, meanshaving a home position and an operated position cooperating with saidmovable members to form a variable stop for said wheel, and a pluralityof means carried on said wheel adapted to operate said lastmentionedco-operating means.

17. In a machine of the class described, the combination of a totalizerwheel, movable stops carried thereby, means for selectively projectingsaid stops, and a member co-operating with said wheel comprising a stopportion cooperable with the projected one of said first mentioned stops,a por tion for returning said projected stop to home position, and aportion for holding said wheel in adjusted position.

18. In a machine of the class described, the combination of a totalizerwheel; stops movably mounted in the wheel; means to select any of thestops to control the differential travel of the wheel; an abutmentnormally lying in the path of the selected stop to arrest thedifferential travel of the totalizer Wheel; means to return the selectedstop to normal idle position and to hold the wheel in its differentiallyadjusted position; and means to shift the last-named means into and outof effective position.

In testimony whereof I aflix my signature.

WILLIAM H. ROBERTSON.

